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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-07 07:13:01 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-07 07:13:01 +0900
commitf1c6872e4980bc4078cfaead05f892b3d78dea64 (patch)
tree24c18bb07714109296638b3193b35bdcc4098f7c /include/xen
parent5f3d2f2e1a63679cf1c4a4210f2f1cc2f335bef6 (diff)
parent4ed5978bdd99114db7773cb3d78f2998bd17f694 (diff)
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Merge tag 'stable/for-linus-3.7-arm-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
Pull ADM Xen support from Konrad Rzeszutek Wilk: Features: * Allow a Linux guest to boot as initial domain and as normal guests on Xen on ARM (specifically ARMv7 with virtualized extensions). PV console, block and network frontend/backends are working. Bug-fixes: * Fix compile linux-next fallout. * Fix PVHVM bootup crashing. The Xen-unstable hypervisor (so will be 4.3 in a ~6 months), supports ARMv7 platforms. The goal in implementing this architecture is to exploit the hardware as much as possible. That means use as little as possible of PV operations (so no PV MMU) - and use existing PV drivers for I/Os (network, block, console, etc). This is similar to how PVHVM guests operate in X86 platform nowadays - except that on ARM there is no need for QEMU. The end result is that we share a lot of the generic Xen drivers and infrastructure. Details on how to compile/boot/etc are available at this Wiki: http://wiki.xen.org/wiki/Xen_ARMv7_with_Virtualization_Extensions and this blog has links to a technical discussion/presentations on the overall architecture: http://blog.xen.org/index.php/2012/09/21/xensummit-sessions-new-pvh-virtualisation-mode-for-arm-cortex-a15arm-servers-and-x86/ * tag 'stable/for-linus-3.7-arm-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: (21 commits) xen/xen_initial_domain: check that xen_start_info is initialized xen: mark xen_init_IRQ __init xen/Makefile: fix dom-y build arm: introduce a DTS for Xen unprivileged virtual machines MAINTAINERS: add myself as Xen ARM maintainer xen/arm: compile netback xen/arm: compile blkfront and blkback xen/arm: implement alloc/free_xenballooned_pages with alloc_pages/kfree xen/arm: receive Xen events on ARM xen/arm: initialize grant_table on ARM xen/arm: get privilege status xen/arm: introduce CONFIG_XEN on ARM xen: do not compile manage, balloon, pci, acpi, pcpu and cpu_hotplug on ARM xen/arm: Introduce xen_ulong_t for unsigned long xen/arm: Xen detection and shared_info page mapping docs: Xen ARM DT bindings xen/arm: empty implementation of grant_table arch specific functions xen/arm: sync_bitops xen/arm: page.h definitions xen/arm: hypercalls ...
Diffstat (limited to 'include/xen')
-rw-r--r--include/xen/events.h2
-rw-r--r--include/xen/interface/features.h3
-rw-r--r--include/xen/interface/io/protocols.h3
-rw-r--r--include/xen/interface/memory.h12
-rw-r--r--include/xen/interface/physdev.h2
-rw-r--r--include/xen/interface/version.h2
-rw-r--r--include/xen/xen.h4
7 files changed, 18 insertions, 10 deletions
diff --git a/include/xen/events.h b/include/xen/events.h
index 04399b28e82..c6bfe01acf6 100644
--- a/include/xen/events.h
+++ b/include/xen/events.h
@@ -109,4 +109,6 @@ int xen_irq_from_gsi(unsigned gsi);
/* Determine whether to ignore this IRQ if it is passed to a guest. */
int xen_test_irq_shared(int irq);
+/* initialize Xen IRQ subsystem */
+void xen_init_IRQ(void);
#endif /* _XEN_EVENTS_H */
diff --git a/include/xen/interface/features.h b/include/xen/interface/features.h
index b6ca39a069d..131a6ccdba2 100644
--- a/include/xen/interface/features.h
+++ b/include/xen/interface/features.h
@@ -50,6 +50,9 @@
/* x86: pirq can be used by HVM guests */
#define XENFEAT_hvm_pirqs 10
+/* operation as Dom0 is supported */
+#define XENFEAT_dom0 11
+
#define XENFEAT_NR_SUBMAPS 1
#endif /* __XEN_PUBLIC_FEATURES_H__ */
diff --git a/include/xen/interface/io/protocols.h b/include/xen/interface/io/protocols.h
index 01fc8ae5f0b..0eafaf254ff 100644
--- a/include/xen/interface/io/protocols.h
+++ b/include/xen/interface/io/protocols.h
@@ -5,6 +5,7 @@
#define XEN_IO_PROTO_ABI_X86_64 "x86_64-abi"
#define XEN_IO_PROTO_ABI_IA64 "ia64-abi"
#define XEN_IO_PROTO_ABI_POWERPC64 "powerpc64-abi"
+#define XEN_IO_PROTO_ABI_ARM "arm-abi"
#if defined(__i386__)
# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_X86_32
@@ -14,6 +15,8 @@
# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_IA64
#elif defined(__powerpc64__)
# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_POWERPC64
+#elif defined(__arm__)
+# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_ARM
#else
# error arch fixup needed here
#endif
diff --git a/include/xen/interface/memory.h b/include/xen/interface/memory.h
index d8e33a93ea4..b66d04ce695 100644
--- a/include/xen/interface/memory.h
+++ b/include/xen/interface/memory.h
@@ -34,7 +34,7 @@ struct xen_memory_reservation {
GUEST_HANDLE(xen_pfn_t) extent_start;
/* Number of extents, and size/alignment of each (2^extent_order pages). */
- unsigned long nr_extents;
+ xen_ulong_t nr_extents;
unsigned int extent_order;
/*
@@ -92,7 +92,7 @@ struct xen_memory_exchange {
* command will be non-zero.
* 5. THIS FIELD MUST BE INITIALISED TO ZERO BY THE CALLER!
*/
- unsigned long nr_exchanged;
+ xen_ulong_t nr_exchanged;
};
DEFINE_GUEST_HANDLE_STRUCT(xen_memory_exchange);
@@ -148,8 +148,8 @@ DEFINE_GUEST_HANDLE_STRUCT(xen_machphys_mfn_list);
*/
#define XENMEM_machphys_mapping 12
struct xen_machphys_mapping {
- unsigned long v_start, v_end; /* Start and end virtual addresses. */
- unsigned long max_mfn; /* Maximum MFN that can be looked up. */
+ xen_ulong_t v_start, v_end; /* Start and end virtual addresses. */
+ xen_ulong_t max_mfn; /* Maximum MFN that can be looked up. */
};
DEFINE_GUEST_HANDLE_STRUCT(xen_machphys_mapping_t);
@@ -172,7 +172,7 @@ struct xen_add_to_physmap {
unsigned int space;
/* Index into source mapping space. */
- unsigned long idx;
+ xen_ulong_t idx;
/* GPFN where the source mapping page should appear. */
xen_pfn_t gpfn;
@@ -189,7 +189,7 @@ struct xen_translate_gpfn_list {
domid_t domid;
/* Length of list. */
- unsigned long nr_gpfns;
+ xen_ulong_t nr_gpfns;
/* List of GPFNs to translate. */
GUEST_HANDLE(ulong) gpfn_list;
diff --git a/include/xen/interface/physdev.h b/include/xen/interface/physdev.h
index bfa1d50fe15..1844d31f455 100644
--- a/include/xen/interface/physdev.h
+++ b/include/xen/interface/physdev.h
@@ -56,7 +56,7 @@ struct physdev_eoi {
#define PHYSDEVOP_pirq_eoi_gmfn_v2 28
struct physdev_pirq_eoi_gmfn {
/* IN */
- unsigned long gmfn;
+ xen_ulong_t gmfn;
};
/*
diff --git a/include/xen/interface/version.h b/include/xen/interface/version.h
index 5f5e551cf54..7ff6498679a 100644
--- a/include/xen/interface/version.h
+++ b/include/xen/interface/version.h
@@ -45,7 +45,7 @@ struct xen_changeset_info {
#define XENVER_platform_parameters 5
struct xen_platform_parameters {
- unsigned long virt_start;
+ xen_ulong_t virt_start;
};
#define XENVER_get_features 6
diff --git a/include/xen/xen.h b/include/xen/xen.h
index a16402418d3..a74d4362c4f 100644
--- a/include/xen/xen.h
+++ b/include/xen/xen.h
@@ -23,8 +23,8 @@ extern enum xen_domain_type xen_domain_type;
#include <xen/interface/xen.h>
#include <asm/xen/hypervisor.h>
-#define xen_initial_domain() (xen_pv_domain() && \
- xen_start_info->flags & SIF_INITDOMAIN)
+#define xen_initial_domain() (xen_domain() && \
+ xen_start_info && xen_start_info->flags & SIF_INITDOMAIN)
#else /* !CONFIG_XEN_DOM0 */
#define xen_initial_domain() (0)
#endif /* CONFIG_XEN_DOM0 */